import React, { MutableRefObject } from 'react';
import type { FixedProps } from './types';
/**
 * useGrid
 * @description 是否使用了栅格系统
 * @param {FixedProps} props
 * @return {boolean}
 */
export declare const useGrid: (props: FixedProps) => boolean;
/**
 * useGap
 * @param {number | number[]} gutter
 * @return {boolean}
 */
export declare const useGap: (gutter: any) => boolean;
/**
 * useTrigger
 */
export declare const useTrigger: ({ trigger, collapseDirection, collapsedSize, defaultCollapsible, onCollapse, selectorPrefix, elRef, }: Pick<FixedProps, 'trigger' | 'collapseDirection' | 'collapsedSize' | 'defaultCollapsible' | 'onCollapse'> & {
    elRef: MutableRefObject<HTMLDivElement | null>;
    selectorPrefix: string;
}) => {
    renderTrigger: () => React.JSX.Element | null;
    collapseStyle: {
        maxWidth: string | number;
        maxHeight?: undefined;
    } | {
        maxHeight: string | number;
        maxWidth?: undefined;
    } | {
        maxWidth?: undefined;
        maxHeight?: undefined;
    };
};